Apparently Doctors in Scotland with the use of MRI machines have discovered that sitting just ten minutes hunched forward or ramrod straight - with thighs at a 90 degree angle to the body -compressed disks, placing strain on muscles of the lower back.
However, when people sat on cushion with their hips slightly higher than their knees - the trunk and thighs were at a 135 degree angle - the spine remained close to its natural alignment, easing pressure on disks and keeping muscles relaxed.
So try raising your chair high enough to put your hips above your knee, or sit on a cushion and recline slightly.
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